package org.healer.simple_juc;

public class UnsafeBank {
    public static void main(String[] args) {
        Account account = new Account(1000,"陈鹏");
        Drawing me = new Drawing(account,600,"我");
        Drawing you = new Drawing(account,500,"你");
        me.start();
        you.start();
    }
}
//账户
class Account {
    int money;//余额
    String name;//卡名

    public Account(int money, String name) {
        this.money = money;
        this.name = name;
    }
}

//银行：模拟取款
class Drawing extends Thread{
    Account account;//账户
    int drawingMoney;//取多少钱
    int nowMoney;//现在手里的钱
    public Drawing(Account account,int drawingMoney,String name){
        super(name);
        this.account=account;
        this.drawingMoney=drawingMoney;
    }

    @Override
    public void run() {
        //先判断有没有钱
        synchronized(account){ //同步块，并指定被锁的对象
            if(account.money-drawingMoney<0){
                System.out.println(Thread.currentThread().getName()+"钱不够，取不了");
                return;
            }
            try {
                Thread.sleep(500);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            // 卡内余额
            account.money=account.money-drawingMoney;
            // 手里的钱
            nowMoney=drawingMoney+nowMoney;
            System.out.println(account.name+"余额为："+account.money);
            System.out.println(this.getName()+"手里的钱："+nowMoney);
        }

    }
}
